Runtime Error?

Trying to debug my app on Mac OS X 10.3 and Xojo 2015r1 using VMware Fusion and get the following error:

I’m been using this setup for a while without problem.

Help please

It looks like you are trying to load a Mac OSX dylib on a Window’s system. Do you have any declares in your app? Make sure to include #if/#endif so they are only included on the correct platform.

That what it was. Have taken care using the #if/#endif.

Is there a way to exclude a class?

No
You’d need to wrap the entire class in a #if Targetxxx and there’s no way to do that